What are some best practices for organizing and accessing variables in PHP code?

When working with variables in PHP code, it is important to organize them in a way that is easily accessible and maintainable. One best practice is to use meaningful variable names that clearly describe their purpose. Additionally, grouping related variables together can help improve code readability. Finally, consider using arrays or objects to store related variables, especially when dealing with multiple related data points. 

// Example of organizing variables using arrays
$user = [
    'name' => 'John',
    'age' => 30,
    'email' => 'john@example.com'
];

// Accessing variables from the array
echo $user['name']; // Output: John
echo $user['age']; // Output: 30
echo $user['email']; // Output: john@example.com

Keywords

Variable scope global keyword superglobals namespaces constants

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